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NORTH SHORE MEDICAL GROUP OF THE MOUNT SINAI SCHOOL OF MEDICINE
NPI 1962646091
Internal Medicine - Gastroenterology in Nesconset, NY

Active since April 20, 2009
59 SOUTHERN BLVD, NESCONSET, NY 11767(631) 659-1700(631) 659-1750 Get Directions Write a Review

NPPES record last updated: November 8, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About North Shore Medical Group Of The Mount Sinai School Of Medicine NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NORTH SHORE MEDICAL GROUP OF THE MOUNT SINAI SCHOOL OF MEDICINE (NPI 1962646091) is a healthcare organization registered as a gastroenterology in Nesconset, New York and active in the NPI registry since April 2009. The organization lists Janet Street, Practice Administrator, as its authorized official.

NPPES Registry Identity

NPI1962646091
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameNORTH SHORE MEDICAL GROUP OF THE MOUNT SINAI SCHOOL OF MEDICINE
Location Address59 SOUTHERN BLVDNesconset, NY 11767-1090
Mailing Address59 Southern BlvdNesconset, NY 11767-1090 · (631) 659-1700 · Fax (631) 659-1750
Phone(631) 659-1700
Fax(631) 659-1750
Organization SubpartNo
Authorized OfficialJanet StreetPractice Administrator · (631) 351-3703
Enumeration DateApril 20, 2009
Last NPPES UpdateNovember 8, 2012
✔ NPI 1962646091 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X
59 SOUTHERN BLVD, Nesconset, NY 11767
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

North Shore Medical Group Of The Mount Sinai School Of Medicine is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

571

Medicare enrollment records show 571 clinicians reassign Medicare billing to North Shore Medical Group Of The Mount Sinai School Of Medicine, which bills Medicare for the services they deliver. Of these, 27 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 43

Diagnostic Radiology143
Internal Medicine71
Cardiovascular Disease (Cardiology)38
Family Practice34
Nurse Practitioner32
Obstetrics/Gynecology30
Gastroenterology27
General Surgery19
35 other specialties177

Nearest to this location (20)

See all 571
Harley Cohen, MD
Rheumatology
NPI 1669535845
59 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1700
✔ PECOS✔ Accepts Medicare0.1 mi
Joanne Kechejian, M.D.
Internal Medicine
NPI 1316957707
59 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1700
✔ PECOS✔ Accepts Medicare0.1 mi
Augustus Mantia, MD
Internal Medicine
NPI 1588662829
59 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1700
✔ PECOS0.1 mi
David Oustecky, M.D.
Gastroenterology
NPI 1952547945
59 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1800
✔ PECOS✔ Accepts Medicare0.1 mi
Glenn Rosett, M.D.
Internal Medicine
NPI 1871520049
59 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1700
✔ PECOS✔ Accepts Medicare0.1 mi
Barbara Stumacher, M.D.
Internal Medicine
NPI 1841436458
59 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1700
✔ PECOS✔ Accepts Medicare0.1 mi
Lori Weber, NPRN
Nurse Practitioner
NPI 1265616452
59 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1700
✔ PECOS0.1 mi
Syeda Hossain, MD
Gastroenterology
NPI 1891816245
61 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1850
✔ PECOS✔ Accepts Medicare0.1 mi
Jenny Lam, M.D.
Cardiovascular Disease (Cardiology)
NPI 1679849764
61 SOUTHERN BLVD
Nesconset, NY 11767
(631) 659-1800
✔ PECOS✔ Accepts Medicare0.1 mi
Stacey Cedeno, ANP
Nurse Practitioner
NPI 1184749053
496 SMITHTOWN BYP SUITE 200
Smithtown, NY 11787
(631) 265-9111
✔ PECOS0.9 mi
Deborah Weiss, M.D.
Internal Medicine
NPI 1053327015
222 E MIDDLE COUNTRY RD STE 330
Smithtown, NY 11787
(631) 393-1670
✔ PECOS✔ Accepts Medicare1.4 mi
Alexander Epelbaum, M.D.
Urology
NPI 1487673612
373 ROUTE 111 SUITE 7
Smithtown, NY 11787
(631) 360-7450
✔ PECOS✔ Accepts Medicare2.3 mi
Marilena Mirica, MD
Hospitalist
NPI 1184660003
267 E MAIN ST BLDG C
Smithtown, NY 11787
(631) 418-8069
✔ PECOS2.4 mi
Evan Kessler, MD
Vascular Surgery
NPI 1316366404
48 ROUTE 25A STE 303
Smithtown, NY 11787
(631) 862-3635
✔ PECOS✔ Accepts Medicare3.5 mi
Mingqian Huang, M.D.
Diagnostic Radiology
NPI 1023213725
NICOLLS ROAD AND HEALTH SCIENCES HSC LEVEL 4 ROOM 120
Stony Brook, NY 11794
(631) 444-7955
✔ PECOS✔ Accepts Medicare4.1 mi
Sean Adwar, M.D.
Diagnostic Radiology
NPI 1942562392
101 NICOLLS ROAD, STONY BROOK NY 11794-8460
Stony Brook, NY 11794
(631) 444-7955
✔ PECOS✔ Accepts Medicare4.4 mi
Edward Papa, D.O.
Pain Management
NPI 1447517842
101 NICOLLS ROAD STONY BROOK ANESTHESIOLOGY
Stony Brook, NY 11794
(631) 444-2975
✔ PECOS✔ Accepts Medicare4.4 mi
Jenna Palladino, PSYD
Clinical Psychologist
NPI 1619453446
169 PUTNAM HALL
Stony Brook, NY 11794
(631) 632-9510
✔ PECOS4.4 mi
Gurmohan Syali, MD
Hematology/Oncology
NPI 1932195138
235 N BELLE MEAD RD
E Setauket, NY 11733
(631) 751-3000
✔ PECOS✔ Accepts Medicare4.7 mi
Gideon Schneck, M.D.
Ophthalmology
NPI 1023054350
33 RESEARCH WAY
East Setauket, NY 11733
(631) 444-4090
✔ PECOS✔ Accepts Medicare4.9 mi
See all 571 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is North Shore Medical Group Of The Mount Sinai School Of Medicine's NPI number?

The NPI number for North Shore Medical Group Of The Mount Sinai School Of Medicine is 1962646091. It was assigned to this organization in the NPPES registry on April 20, 2009.

Where is North Shore Medical Group Of The Mount Sinai School Of Medicine located?

North Shore Medical Group Of The Mount Sinai School Of Medicine is located at 59 Southern Blvd, Nesconset, NY 11767. The listed phone number is (631) 659-1700.

What is North Shore Medical Group Of The Mount Sinai School Of Medicine's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is North Shore Medical Group Of The Mount Sinai School Of Medicine enrolled in Medicare?

Yes. North Shore Medical Group Of The Mount Sinai School Of Medicine is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through North Shore Medical Group Of The Mount Sinai School Of Medicine?

According to the CMS Revalidation Reassignment List (October 2026 release), 571 clinicians in 43 Medicare specialties reassign their Medicare billing to North Shore Medical Group Of The Mount Sinai School Of Medicine. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Diagnostic Radiology (143), Internal Medicine (71) and Cardiovascular Disease (Cardiology) (38). Of these, 27 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for North Shore Medical Group Of The Mount Sinai School Of Medicine was last updated on November 8, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.